Please people I need your help .

"I asked Mary where she was all morning." sounds correct e_e

"I asked Marry where she was all morning."

(Either that, или the name's spelled wrong...)

There needs to be a period at the end of 'morning'. There's no Космос between the word 'morning' and the parenthese. The name Marry might have an extra R, but names vary in spelling. And there is no end parenthese. ;)

If you're trying to spell "Mary" then Ты added and extra r.